Horrified by her own act of cannibalistic ignorance, she curses herself. But the son says, "Thagatha Uravu, Amma. Your wish is my law." In some versions, the son turns into a stone pillar at her feet—eternally holding her up, never leaving. The bond is preserved, but at the cost of his humanity.
So, what do we do with these troubling tales? Tamil Amma Magan Thagatha Uravu Kathaigal
If you wish to read or share such stories, here are the best sources: Horrified by her own act of cannibalistic ignorance,